Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
$107M |
| 2 |
SPDR Gold Trust
GLD
|
$65.8M |
| 3 |
NVIDIA
NVDA
|
$61.6M |
| 4 |
Apple
AAPL
|
$51.2M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$50.9M |
Top Sells
| 1 |
Qualcomm
QCOM
|
$25.2M |
| 2 |
Netflix
NFLX
|
$24.1M |
| 3 |
Walt Disney
DIS
|
$22.2M |
| 4 |
Snowflake
SNOW
|
$17.4M |
| 5 |
Advanced Micro Devices
AMD
|
$17.2M |
Sector Composition
| 1 | Technology | 20.43% |
| 2 | Consumer Discretionary | 15% |
| 3 | Healthcare | 10.19% |
| 4 | Financials | 8.16% |
| 5 | Communication Services | 6.81% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
iShares 20+ Year Treasury Bond ETF
TLT
$47.8B
| $138M | 0.11% | 1,555,416 +574,458 | +59% | +$50.9M |
|
|
2
NVIDIA
NVDA
$4.24T
| $123M | 0.1% | 283,534 +141,601 | +100% | +$61.6M |
|
|
3
Amazon
AMZN
$2.44T
| $107M | 0.08% | +841,102 | New | +$107M |
|
|
4
SPDR Gold Trust
GLD
$107B
| $70.7M | 0.06% | 412,396 +383,764 | +1,340% | +$65.8M |
|
5
Pfizer
PFE
$141B
| $64.9M | 0.05% | 1,955,694 +1,430,473 | +272% | +$47.4M |
|
|
6
Apple
AAPL
$3.45T
| $51.2M | 0.04% | +299,259 | New | +$51.2M |
|
7
PayPal
PYPL
$67.1B
| $48.9M | 0.04% | 836,961 +187,735 | +29% | +$11M |
|
8
Microsoft
MSFT
$3.77T
| $46.5M | 0.04% | 147,215 -24,720 | -14% | -$7.81M |
|
9
SPDR Dow Jones Industrial Average ETF Trust
DIA
$39.9B
| $43.8M | 0.03% | 130,631 +104,312 | +396% | +$34.9M |
|
10
Utilities Select Sector SPDR Fund
XLU
$20.9B
| $41.3M | 0.03% | 700,675 +232,260 | +50% | +$13.7M |
|
11
Bank of America
BAC
$376B
| $40.5M | 0.03% | 1,478,913 +600,140 | +68% | +$16.4M |
|
12
Verizon
VZ
$186B
| $35.8M | 0.03% | 1,103,215 +249,148 | +29% | +$8.07M |
|
13
Coinbase
COIN
$78.2B
| $32.9M | 0.03% | +438,054 | New | +$32.9M |
|
14
Oracle
ORCL
$635B
| $32.1M | 0.03% | 303,391 +7,608 | +3% | +$806K |
|
15
JD.com
JD
$44.1B
| $30.3M | 0.02% | 1,040,609 +394,306 | +61% | +$11.5M |
|
16
Alphabet (Google) Class C
GOOG
$2.58T
| $28M | 0.02% | 212,363 -32,715 | -13% | -$4.31M |
|
17
AT&T
T
$209B
| $26.3M | 0.02% | 1,750,233 +645,489 | +58% | +$9.7M |
|
18
Newmont
NEM
$81.7B
| $24.4M | 0.02% | 660,300 +107,394 | +19% | +$3.97M |
|
|
ATVI
19
DELISTED
Activision Blizzard Inc.
ATVI
| $23.6M | 0.02% | 251,735 +107,053 | +74% | +$10M |
|
20
Salesforce
CRM
$245B
| $22.5M | 0.02% | 111,199 +89,806 | +420% | +$18.2M |
|
21
Procter & Gamble
PG
$368B
| $22.4M | 0.02% | 153,335 -15,725 | -9% | -$2.29M |
|
22
Alibaba
BABA
$322B
| $22.2M | 0.02% | 255,365 -10,434 | -4% | -$905K |
|
23
ASML
ASML
$292B
| $21.4M | 0.02% | +36,377 | New | +$21.4M |
|
24
Boeing
BA
$177B
| $19.4M | 0.02% | 100,961 -961 | -0.9% | -$184K |
|
25
Union Pacific
UNP
$133B
| $18.9M | 0.01% | 92,652 +65,646 | +243% | +$13.4M |
|